Richmondoceras
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| Richmondoceras Temporal range: Ordovician-Silurian | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Order: | †Orthocerida |
| Genus: | †Richmondoceras Frey (1995) |
Richmondoceras is an extinct genus of actively mobile carnivorous cephalopods, essentially a Nautiloid, that lived in what would be North America during the Ordovician and Silurian from 449.5—443.7 mya, existing for approximately 5.8 million years.[1]
Richmondoceras was named by Frey (1995). Its type is Richmondoceras brevicameratum. It was assigned to Orthocerida by Frey (1995).[2]